Medical Solution Mixing Chamber for Controlled Powder Dissolution

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Solution Overview

Problem

Existing medical solution preparation devices are complex, time-consuming, and inefficient, leading to delays in providing ready-to-use solutions, particularly in dialysis treatments, and can overload clinic water supply systems.

Innovation Solution

A device comprising a first chamber for measuring solvent and a second chamber for recirculating the solvent-powder mixture, allowing precise mixing and distribution of medical solutions with controlled solvent volume and reduced demand on water supply systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a recirculation circuit with multiple valves and control devices is used to mix powder and solvent, then the mixing precision and solution quality are improved, but the device complexity increases

Engineering Contradiction:

Improvesolution concentration precisionVSAvoidnumber of valves and control devices

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent extracts and removes unnecessary valves and control devices from the recirculation circuit, keeping only the essential mixing chamber and powder container. This simplification maintains mixing precision by focusing on the core mixing function while eliminating complex control mechanisms.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The mixing chamber is designed to automatically mix powder and solvent through its structure, eliminating the need for external control devices. The system self-regulates the mixing process through the interaction between the powder container and mixing chamber, reducing device complexity while maintaining solution quality.

Inventive Principle:

Principle #25Self-service

2Productivity

If a traditional mixing system is used to prepare medical solution, then the solution can be prepared, but substantial time delay occurs during container preparation and mixing

Engineering Contradiction:

Improvesolution preparation speedVSAvoidcontainer preparation time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by pre-positioning the powder in the container and pre-configuring the mixing chamber structure before the mixing process begins. This allows the mixing to start immediately when solvent is introduced, eliminating setup time and reducing overall preparation time.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The simplified mixing chamber design allows the mixing process to occur rapidly as solvent flows through the chamber. The direct flow path and absence of complex recirculation circuits enable the system to rush through the mixing process quickly, reducing time delay while still achieving adequate mixing.

Inventive Principle:

Principle #21Skipping (Rushing through)

3Manufacturing precision

If a mixing system requiring large amount of solvent circulation is used, then the powder dissolves thoroughly, but the water supply system becomes overloaded

Engineering Contradiction:

Improvepowder dissolution completenessVSAvoidsolvent consumption

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent applies local quality by concentrating the mixing action in a localized mixing chamber rather than requiring system-wide recirculation. The solvent is introduced directly into the mixing chamber where powder dissolution occurs, ensuring thorough local mixing without needing to circulate large volumes of solvent through the entire system.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent extracts the mixing function from the overall recirculation system, isolating it in a dedicated mixing chamber. This allows thorough powder dissolution to occur in a controlled local environment with minimal solvent volume, preventing overload of the water supply system while maintaining dissolution completeness.

Inventive Principle:

Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device enables rapid preparation of high-quality medical solutions with reduced solvent demand, minimizing system load and ensuring consistent batch production without overburdening water supplies.

Implementation Method 1

a mixing chamber configured to mix the at least one powder with the solvent to dissolve the at least one powder

Methodology Applied

Scientific EffectRecirculation flow: Convection

Implementation Method 2

mix the at least one powder with the solvent to dissolve the at least one powder

Methodology Applied

Scientific EffectDissolution: Solvation

Data Source

PatentUS20250332329A1Device and system providing a medical solution and a method thereof

Publication Date: 2025.10.30 STAYMED AB

AI summary

A device and method for providing a medical solution is described. The device comprises a first chamber adapted to have a defined volume, the first chamber is configured to be connected to a liquid providing system to fill the first chamber with the defined volume of liquid. A connector for connecting a container including at least one powder; the connector has an inlet and an outlet. A channel connecting the first chamber with the inlet of the connector, and an outlet for distributing the medical solution. The device is configured to mix the at least one powder with the defined volume of liquid for a period of time, and wherein the device is configured to fill the first chamber with the liquid from the liquid providing system while mixing the medical solution and/or distributing the mixed medical solution through the outlet.